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Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication
Published on: February 6, 2019
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How high-dose alcohol intoxication affects the interplay of automatic and controlled processes
Witold X Chmielewski1, Nicolas Zink1, Keluf Ylva Chmielewski1
1Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Carl Gustav Carus Faculty of Medicine, Dresden, Germany.
Addiction Biology
|December 19, 2018
Summary
Binge drinking impairs cognitive control more than automatic responses. However, alcohol
Area of Science:
- Neuroscience
- Psychology
- Addiction Research
Background:
- Binge drinking is a growing public health concern.
- Alcohol use disorders (AUDs) are linked to cognitive control deficits.
- The interaction between cognitive control and automatic processes in binge drinking is understudied.
Purpose of the Study:
- To investigate how binge drinking affects the interplay between top-down cognitive control and automatic response generation.
- To examine alcohol's impact on cognitive subprocesses using electroencephalography (EEG).
Main Methods:
- A within-subject design with 35 healthy young men.
- Performance on a novel Simon Nogo task while sober and intoxicated (~1.2‰ BAC).
- EEG recording to analyze controlled and automatic cognitive subprocesses.
Main Results:
- Alcohol significantly reduced top-down cognitive control, impacting S-R mapping, response selection, and inhibition.
- Automatic processing appeared less affected by alcohol intoxication.
- The interaction between cognitive control and automatic processes showed potential "carryover" effects, possibly mitigating some alcohol-induced deficits.
Conclusions:
- Binge drinking impairs cognitive control but may preserve the interaction with automatic processes.
- These findings suggest potential compensatory mechanisms that could be beneficial in managing alcohol use disorders (AUDs).
- Further research into these interactions may offer novel therapeutic targets for AUDs.
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